With fall and winter just around the corner, the unresolved Ukraine gas dispute will soon become a continent-wide crisis, threatening vital imports. Here we examine which companies are in the best position to benefit from this, and who the big losers could be.

With Russian companies providing a significant portion of Europe's oil and natural gas, the decision of Western leaders to impose travel bans on well-connected CEOs is setting up a sanctions war between the European Union and Russia. Officials say this could damage Russia's economy, but EU companies could be the real losers here.

There is a growing movement of technology companies crossing over into the world of energy and Toshiba is a name quietly fllexing its muscle with next generation cleantech moves that investors should be focusing on.